Definition and Overview
Psychogenic dizziness refers to dizziness that occurs when psychological factors such as anxiety, fear, and stress affect vestibular processing in the absence of structural vestibular disease or central nervous system lesions. Approximately 20–30% of patients visiting specialized clinics for chronic dizziness are diagnosed with a psychogenic cause [1]. Previously termed "neurogenic dizziness" or "phobic postural vertigo," it is increasingly being reclassified under the diagnostic framework of persistent postural-perceptual dizziness (PPPD) [5].
Psychogenic dizziness is a genuine symptom experienced by the patient, not something "made up" or caused by "mental weakness." It is a neurological phenomenon arising from excessive activation of the brain's anxiety-vestibular interaction circuits, and functional MRI (fMRI) studies have confirmed altered activity in the relevant brain regions [4].
Causes and Mechanisms
Anxiety-Vestibular Interaction
Dizziness and anxiety are closely linked neuroanatomically. Bidirectional neural pathways exist between the vestibular nuclei and the amygdala, hippocampus, and brainstem autonomic centers [2]. Anxiety disrupts vestibular signal processing, and dizziness in turn amplifies anxiety, creating a vicious cycle. Balaban and Thayer (2001) termed this circuit the "balance-anxiety link" and reported that the parabrachial nucleus pathway connecting the vestibular nuclei to the amygdala serves as a key relay [2].
Autonomic Overactivation
Chronic sympathetic overactivation is commonly observed in patients with psychogenic dizziness. Heart rate variability (HRV) analysis reveals sympathovagal imbalance, and excessive sympathetic responses upon standing worsen dizziness. Norepinephrine secreted during sympathetic overactivation modulates vestibular nuclear signal processing and lowers the dizziness threshold, causing patients to experience excessive dizziness even with normal head movements or postural changes.
Hyperventilation Mechanism
Hyperventilation is a direct trigger of psychogenic dizziness. When breathing accelerates during anxiety states, blood carbon dioxide partial pressure decreases and respiratory alkalosis develops. This causes cerebral vasoconstriction, reduced cerebral blood flow, and symptoms including dizziness, blurred vision, and extremity tingling. Studies show that approximately 25% of chronic dizziness patients have symptom reproduction during hyperventilation provocation testing [3].
Role of the Insular Cortex
The insular cortex (insula) is a hub that integrates vestibular information, interoception, and emotional processing. According to Indovina et al. (2015), individuals with high anxiety traits show abnormally increased connectivity between the insula and amygdala during vestibular stimulation, leading to mutual reinforcement of dizziness and anxiety [4]. This finding provides evidence that psychogenic dizziness reflects functional changes at the brain circuit level rather than being merely a psychological issue.
Related Conditions
Panic Disorder
Acute dizziness occurs during panic attacks, and approximately 50–85% of patients with panic disorder experience dizziness [3]. As panic attacks recur, anticipatory anxiety about becoming dizzy again develops, which itself triggers dizziness in a self-perpetuating cycle.
Generalized Anxiety Disorder
Persistent worry and tension chronically activate the sympathetic nervous system, producing mild but continuous dizziness and unsteadiness. The prevalence of non-rotational dizziness in patients with generalized anxiety disorder is approximately 2–3 times higher than in the general population.
Relationship with PPPD
A substantial portion of psychogenic dizziness is currently being reclassified as PPPD (persistent postural-perceptual dizziness). PPPD is a diagnostic entity established by the Barany Society in 2017, integrating previous diagnostic concepts including chronic subjective dizziness, phobic postural vertigo, and visual vertigo [6]. Cases of psychogenic dizziness meeting criteria of non-rotational dizziness and unsteadiness persisting for 3 months or more, worsened by upright posture, ambulation, or visual stimulation, fulfill PPPD diagnostic criteria.
Symptoms
The symptoms of psychogenic dizziness differ from those of structural vestibular disorders. The main symptoms include the following.
- Non-rotational dizziness: Rather than a spinning sensation, patients typically experience a floating sensation, lightheadedness, or a sense of the ground swaying beneath them.
- Situation dependence: Symptoms worsen in crowded places (shopping centers, subways), open spaces, high places, and under bright lighting. Conversely, symptoms often improve at home or in safe environments.
- Autonomic accompaniments: Increased heart rate, sweating, extremity tingling, chest tightness, and dyspnea occur along with dizziness.
- Fluctuation: Symptom intensity fluctuates throughout the day and worsens with stress, fatigue, and sleep deprivation.
- Hyperventilation-related symptoms: Rapid breathing accompanied by simultaneous dizziness, blurred vision, and extremity tingling may be observed.
Even when true rotatory vertigo is the primary symptom, concurrent anxiety disorders such as panic disorder may produce acute rotational dizziness episodes, requiring careful differentiation.
Diagnosis
Vestibular Function Testing
The diagnosis of psychogenic dizziness is fundamentally a diagnosis of exclusion. Structural vestibular disease must be ruled out through vestibular function tests including videonystagmography (VNG), caloric testing, video head impulse test (vHIT), and vestibular evoked myogenic potentials (VEMP). MRI is used to exclude central lesions of the cerebellum and brainstem.
Mental Health Assessment
Psychological factors including anxiety, depression, and panic disorder are systematically evaluated. Standardized questionnaires such as the PHQ-9 (Patient Health Questionnaire), GAD-7 (Generalized Anxiety Disorder scale), and DHI (Dizziness Handicap Inventory) are utilized. Reproduction of the patient's dizziness symptoms during hyperventilation provocation testing aids in diagnosis [3].
Autonomic Function Testing
Tilt table testing, HRV analysis, and the Valsalva maneuver are used to objectively evaluate autonomic function. When sympathetic overactivation is confirmed, it is useful for explaining the mechanism of psychogenic dizziness and developing a treatment plan.
Differential Diagnosis
Psychogenic dizziness must be differentiated from structural and functional vestibular disorders including BPPV, vestibular neuritis, Meniere disease, and migraine-associated dizziness. Particularly, the "overlap pattern" in which psychogenic dizziness develops secondarily after a vestibular disorder is common [1], and the possibility of two diagnoses coexisting should always be considered.
Treatment
Cognitive Behavioral Therapy (CBT)
Cognitive behavioral therapy (CBT) is the core treatment for psychogenic dizziness. It corrects catastrophic interpretations of dizziness (e.g., "I'm going to faint," "there must be something seriously wrong with my brain") and gradually reduces avoidance behaviors. Research has shown that chronic dizziness patients receiving CBT achieve significant reductions in dizziness frequency and disability [5].
Vestibular Rehabilitation
Vestibular rehabilitation includes balance training, gaze stabilization exercises, and habituation training. Gradual exposure to dizziness-provoking stimuli reduces the brain's hypervigilant response and restores normal balance processing. Visual dependence reduction training is added for patients with high visual dependence.
SSRI Pharmacotherapy
Selective serotonin reuptake inhibitors (SSRIs) are effective in modulating overactivity of the anxiety-vestibular circuit. Sertraline, escitalopram, and paroxetine are used, and studies report symptom improvement in approximately 50–70% of chronic subjective dizziness patients following SSRI treatment [1]. Since onset of efficacy takes 4–8 weeks, medication should be maintained for an adequate duration.
Breathing Training
When hyperventilation is identified as a trigger or exacerbating factor for dizziness, diaphragmatic breathing training is incorporated into treatment. Repeated practice of slow breathing patterns (4-second inhalation, 6-second exhalation) activates the parasympathetic nervous system (vagus nerve) and alleviates sympathetic overactivation. Breathing training is a useful self-management tool that patients can perform independently in daily life.
Autonomic Nervous System Regulation
Autonomic regulation therapies are applied in patients with confirmed sympathetic overactivation and autonomic imbalance. HRV biofeedback, transcranial direct current stimulation (tDCS), and vagus nerve stimulation are being investigated, with the goal of normalizing the dizziness threshold by restoring autonomic balance.
Prognosis and Outcomes
The natural course of psychogenic dizziness varies considerably among individuals. Without treatment, it may become chronic and persist for years, with progressive restriction of daily activities and social functioning as avoidance behaviors intensify. The prognosis is favorable when accurate early diagnosis is made and CBT, pharmacotherapy, and vestibular rehabilitation are combined. According to Dieterich and Staab (2017), meaningful symptom improvement was observed in approximately 60–80% of patients when a multidisciplinary approach was applied [5].
Key prognostic factors include symptom duration (shorter is better), whether comorbid mental health conditions are treated, and the patient's understanding of the condition and treatment engagement. Simply telling patients that "tests are normal, so everything is fine" does not resolve their suffering. Explaining that dizziness is a treatable condition with genuine neurological mechanisms is the first step in treatment.